Bug 1250333
| Summary: | qemu will complain: Bad file descriptor, if I didn't add vfio device and only add spapr-pci-vfio-host-bridge device | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Zhengtong <zhengtli> |
| Component: | qemu-kvm-rhev | Assignee: | David Gibson <dgibson> |
| Status: | CLOSED WONTFIX | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | low | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.2 | CC: | knoel, michen, qzhang, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | ppc64le | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-11-05 03:11:20 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
More info : If I hot plug vfio-pci to this bridge, There will be ioctl warning msg (qemu) device_add vfio-pci,host=0002:01:00.3,bus=vfiohost.0,addr=0x1,id=vfio_dev Failed to create KVM VFIO device: No such device (qemu) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60000000, 0x1000, 0x3ffed1170000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60001000, 0x1000, 0x3ffed1171000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60002000, 0x1000, 0x3ffed1172000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60003000, 0x1000, 0x3ffed1173000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60004000, 0x1000, 0x3ffed1174000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60005000, 0x1000, 0x3ffed1175000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60006000, 0x1000, 0x3ffed1176000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60007000, 0x1000, 0x3ffed1177000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60008000, 0x1000, 0x3ffed1178000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60009000, 0x1000, 0x3ffed1179000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x6000a000, 0x1000, 0x3ffed117a000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x6000b000, 0x1000, 0x3ffed117b000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x6000c000, 0x1000, 0x3ffed117c000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x6000d000, 0x1000, 0x3ffed117d000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x6000e000, 0x1000, 0x3ffed117e000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x6000f000, 0x1000, 0x3ffed117f000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60010000, 0x1000, 0x3ffed1110000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60011000, 0x1000, 0x3ffed1111000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60012000, 0x1000, 0x3ffed1112000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60013000, 0x1000, 0x3ffed1113000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60014000, 0x1000, 0x3ffed1114000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60015000, 0x1000, 0x3ffed1115000) = -25 (Inappropriate ioctl for device) qemu-kvm: VFIO_MAP_DMA: -25 qemu-kvm: vfio_dma_map(0x1003752be20, 0x60016000, 0x1000, 0x3ffed1116000) = -25 (Inappropriate ioctl for device) about the message "Failed to create KVM VFIO device: No such device" , there is a bug related https://bugzilla.redhat.com/show_bug.cgi?id=1237034 I suspect the errors after hotplugging a device are a different bug. Let's deal with the errors on the bridge with no devices first. If the errors after hotplug still appear, we can file a new BZ. With the latest changes, we're planning to deprecate spapr-vfio-pci-host-bridge, so I think this bug becomes irrelevant. |
Description of problem: Qemu always prompt: " vfio_dma_unmap(0x1001241be20, 0x7c837000, 0x1000) = -9 (Bad file descriptor)" If I only add spapr-pci-vfio-host-bridge , and no vfio-pci device in qemu command. Version-Release number of selected component (if applicable): qemu-kvm-rhev-2.3.0-13.el7 How reproducible: 100% Steps to Reproduce: 1.boot guest with spapr-pci-vfio-host-bridge, and no vfio-pci device /usr/libexec/qemu-kvm \ -name vfio-liuzt-BE \ -machine pseries,accel=kvm,usb=off \ -m 4096 \ -realtime mlock=off \ -smp 4,sockets=2,cores=2,threads=1 \ -uuid 5125cf27-4b01-4493-b46d-734d08becc6b \ ... -netdev tap,id=hostnet0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown,ifname=vnetvfio \ -device spapr-vlan,netdev=hostnet0,id=net0,mac=52:54:00:5d:c5:9e,reg=0x2000 \ -chardev socket,id=charserial0,path=serial,server,nowait \ -device spapr-vty,chardev=charserial0,reg=0x30000000 \ -device spapr-pci-vfio-host-bridge,id=vfiohost,iommu=1,index=0x1 \ -no-shutdown \ ... 2. Wait to see the booting process. Actual results: qemu will give bad file descriptor message until guest finish booting up qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7fb08000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7fb09000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7fb0a000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7fb0b000, 0x1000) = -9 (Bad file descriptor)vfio_dma_unmap(0x100260bbe20, 0x7ffad000, 0x1000) = -11 (Resource temporarily unavailable) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffae000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffaf000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb0000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb1000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb2000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb3000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb4000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb5000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb6000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb7000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb8000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffb9000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffba000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffbb000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffbc000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffbd000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffbe000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffbf000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc0000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc1000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc2000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc3000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc4000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc5000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc6000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc7000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc8000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffc9000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffca000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffcb000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffcc000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffcd000, 0x1000) = -9 (Bad file descriptor) qemu-kvm: VFIO_UNMAP_DMA: -9 qemu-kvm: vfio_dma_unmap(0x100260bbe20, 0x7ffce000, 0x1000) = -9 (Bad file descriptor) Expected results: Should not have these error msg. Additional info: This won't effect the guest running as for as I see.